摘要
目的：探讨Tei指数在评价正常胎儿和心力衰竭胎儿心脏功能中的应用价值。方法：测量400例正常胎儿（20～25周、26～30周、31～35周、36—40周各100例）左、右心室Tei指数，分析孕周、心率对此指数的影响。测量8例心力衰竭胎儿和与其孕龄匹配的30例正常胎儿左、右心室Tei指数，分析两者之间有无显著性差异。结果：400例正常胎儿左心室Tei指数为0．319±0．0104，右心室Tei指数为0．328±0．105，两者之间具有相关性（r=0．766，P〈0．001）；不同孕龄胎儿之间的Tei指数差异均无显著性意义（P〉0．05）。胎儿左、右心室Tei指数与心率无明显相关（P〉0．05）。8例心力衰竭胎儿左室Tei指数为0．556±0．141，右室Tei指数为0．819±0．280，比正常胎儿左、右心室Tei指数显著升高，差异有显著性意义（P〈0．01）。结论：Tei指数是一种简单可靠的定量综合评价心脏收缩和舒张功能的指标。
Objective：To explore the value of Tei index in normal fetuses and fetuses with heart failure. Methods： Echography was performed in 400 normal fetuses to detect left ventrieular （LV） and fight ventrieular （RV） Tei index. According to gestational ages, 400 fetuses were divided into four groups：20 - 25w,26 - 30w,31 - 35w,36 - 40w, each group had 100 fetuses. The influence of gestational age and heart rate on the index were analysed. LV and RV Tei index in 8 cases fetuses with heart failure and 30 normal fetuses were detected in order to analyse if there was great significance between them. Results： LV and RV Tei index was 0.319 ± 0.104 and 0.328 ± 0.105 separatively in 400 normal fetuses. There was a correlation between LV and RV Tei index （ r = 0.776, P 〈 0.001 ）. No significant changes of Tel index were observed in fetuses with increasing gestational ages or among fetuses with various fetal heart rates （ P 〉 0.05 ）. In 8 fetuses with heart failure, LV Tei index was 0.556 ± 0.141 and RV Tei index was 0. 819 ± 0.280. Compared with the normal fetuses, it was greatly increased, which showed a significant difference （ P 〈 0.01 ）. Conclusion： Tei index was a simple and reliable Doppler index of quantitative assessing overall ventricular function in fetuses.
出处
《医学影像学杂志》
2006年第8期799-801,共3页
Journal of Medical Imaging
